MOTIVATION Tandemly organized repetitive sequences (satellite DNA) are widespread in complex eukaryotic genomes. In plants, satellite repeats often represent a substantial part of nuclear DNA but only a little is known about the molecular mechanisms of their amplification and their possible role(s) in genome evolution and function. Unfortunately, addressing these questions via characterization ...

The search for a universal solution of the equations of motion for a satellite orbiting an oblate planet is a subject that has merited great interest because of its theoretical and practical implications Here a complete rst order perturbation solution including the e ects of the J terms in the planet s potential is given in terms of standard orbital parameters The simple formulas provide a fast...

AThis paper introduces the development of a ground experiment testbed for synthetic mission demonstration of small satellites in National University of Defense Technology (NUDT). This testbed consists of five parts: test platform, small satellite simulator, monitoring and control system, data collecting and simulation system, and displaying system. It can simulate small satellite motion with tw...